Polypipe Zonal Regulation Unit (ZRU) PB970018. (FOR TWO/THREE CIRCUITS) All Polypipe underfloor heating systems can be installed in single rooms and connected to the existing wet heating system. In rooms greater than 30m2 it is recommended that the connection to the underfloor heating system is made via a manifold and installed in the same way as a multiple room installation with single area control. Areas of up to 30m2 should use the Polypipe Zonal Regulation unit (ZRU) as this provides a simpler method of connecting into the existing system, without the need for expensive hydraulic or electrical alterations. The ZRU simply connects to the existing heating system providing: Water temperature control (30?C to 60?C) for the underfloor heating The correct flow rate the underfloor heating Automatically switches On and Off via a built-in pipe thermostat A wiring connection for a room thermostat or wireless sensor Can be connected to operate the underfloor heated room independently with the existing system See also our PDF Installing The ZRU Zonal Regulation Unit
Product Video for Polyplumb Zonal Regulation Unit (ZRU) for single rooms up to 30m2 - two or three circuits
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